{"number":"08","slug":"economic-financial-tool-library","filename":"08-economic-financial-tool-library.md","title":"Economic and Financial Intelligence Tool Library","bytes":20414,"lines":167,"sha256":"7818f6785be3bd4f78627fd16af9601ed4f0370c838f66692d553d7bc9b9b51e","sections":12,"tables":9,"code_blocks":1,"href":"/v1/docs/economic-financial-tool-library","outline":[{"anchor":"1-company-identity-and-financial-evidence","level":2,"title":"1. Company identity and financial evidence","line":7,"tables":["08.1-company-identity-and-financial-evidence.t1"],"code":[]},{"anchor":"public-private-rule","level":3,"title":"Public/private rule","line":24,"tables":[],"code":[]},{"anchor":"2-canada-official-sources","level":2,"title":"2. Canada official sources","line":28,"tables":["08.2-canada-official-sources.t1"],"code":[]},{"anchor":"3-united-states-official-sources","level":2,"title":"3. United States official sources","line":41,"tables":["08.3-united-states-official-sources.t1"],"code":[]},{"anchor":"4-international-trade-and-supply-chain","level":2,"title":"4. International, trade and supply chain","line":58,"tables":["08.4-international-trade-and-supply-chain.t1"],"code":[]},{"anchor":"5-regulatory-compliance-monitoring","level":2,"title":"5. Regulatory/compliance monitoring","line":76,"tables":["08.5-regulatory-compliance-monitoring.t1"],"code":[]},{"anchor":"6-public-price-and-competitor-normalization","level":2,"title":"6. Public price and competitor normalization","line":96,"tables":["08.6-public-price-and-competitor-normalization.t1"],"code":["08.6-public-price-and-competitor-normalization.c1"]},{"anchor":"7-open-source-modeling-library","level":2,"title":"7. Open-source modeling library","line":116,"tables":["08.7-open-source-modeling-library.t1"],"code":[]},{"anchor":"8-evidence-and-uncertainty","level":2,"title":"8. Evidence and uncertainty","line":138,"tables":["08.8-evidence-and-uncertainty.t1"],"code":[]},{"anchor":"9-red-line-tests","level":2,"title":"9. Red-line tests","line":154,"tables":[],"code":[]},{"anchor":"10-laka-ladder","level":2,"title":"10. LAKA ladder","line":158,"tables":["08.10-laka-ladder.t1"],"code":[]}],"blocks":[{"type":"heading","level":1,"text":"Economic and Financial Intelligence Tool Library","anchor":"economic-and-financial-intelligence-tool-library","line":1},{"type":"paragraph","text":"Research snapshot: 2026-09-01. A private company's actual revenue, CAC, churn, LTV, payroll, debt exposure, contribution margin, and cash flow are unknown unless disclosed or supplied through authorized internal data.","line":3},{"type":"paragraph","text":"For numeric outputs, use `REPORTED_OR_MEASURED`, `DETERMINISTIC_CALCULATION`, `ESTIMATE`, or `SCENARIO`. This result class is separate from the canonical claim states O/C/I/H/U/X. Exact arithmetic is permitted only for reconciled historical inputs; forecasts and causal projections remain estimates or scenarios. Never present a benchmark scenario as an exact annual loss.","line":5},{"type":"heading","level":2,"text":"1. Company identity and financial evidence","anchor":"1-company-identity-and-financial-evidence","line":7},{"type":"table","headers":["Source/tool","Coverage and interface","Access/license","Defensibility rule","Official source"],"align":["left","left","left","left","left"],"rows":[["SEC EDGAR APIs","US issuer submissions/XBRL company facts/frames/filings; JSON and nightly ZIPs","no key; fair access 10 requests/sec; identify User-Agent","reconcile units, periods, contexts, dimensions, amendments and footnotes; 10-K usually audited, 10-Q interim","[APIs](https://www.sec.gov/search-filings/edgar-application-programming-interfaces) · [Developer rules](https://www.sec.gov/about/developer-resources)"],["Arelle","XBRL/iXBRL parse/validate for SEC/ESEF","Apache-2.0","validate before trusting extracted facts","[Repo](https://github.com/Arelle/Arelle)"],["EdgarTools","Python filing/statement/ownership/13F/ADV layer","MIT","preserve accession and filing URL as primary provenance","[Repo](https://github.com/dgunning/edgartools)"],["sec-edgar-downloader","reproducible filing download/archive","MIT","obey SEC access policy","[Repo](https://github.com/jadchaar/sec-edgar-downloader)"],["SEDAR+","Canadian issuer financials/MD&A/AIF/prospectus/material changes","free public search/download; mostly documents; no documented public bulk API","do not call browser automation an API; cite document/page and extraction; legacy XBRL availability is limited","[CSA overview](https://www.securities-administrators.ca/about-sedar/)"],["Corporations Canada open data","federal name/status/registered office/directors/IDs","CSV/open data; Open Government Licence Canada","registration only—not revenue, solvency or complete provincial identity","[Dataset](https://open.canada.ca/data/en/dataset/0032ce54-c5dd-4b66-99a0-320a7b5e99f2)"],["Companies House API","UK profiles/officers/PSC/filings/charges/insolvency","free key; 600 requests/5 minutes; OGL/bulk data","micro/abridged accounts may omit detail and may be unaudited","[API](https://developer.company-information.service.gov.uk/)"],["GLEIF LEI","legal names/addresses/status/parent relationships","free API/bulk; CC0","excellent entity resolution; no financial performance","[API](https://www.gleif.org/en/lei-data/gleif-lei-look-up-api/access-the-api)"],["Alpha Vantage","selected market/fundamental convenience data","free key; standard free around 25 requests/day","secondary convenience only; verify against filings/market rights","[Support](https://www.alphavantage.co/support/)"],["Nasdaq Data Link","dataset-specific market/economic data","anonymous/authenticated free quotas; dataset entitlements vary","preserve dataset rights, adjustment and timestamp","[Limits](https://docs.data.nasdaq.com/docs/rate-limits-1)"],["OpenBB","provider integration layer","AGPL-3.0 code; provider rights/keys/costs separate","AGPL and provider data review before proprietary hosting","[Repo](https://github.com/OpenBB-finance/OpenBB)"],["Yahoo Finance via yfinance","unofficial Yahoo data wrapper","unofficial/research convenience","discovery/spot-check only; not auditable client evidence; cite the issuer filing, exchange, or official series for material claims","[yfinance docs](https://ranaroussi.github.io/yfinance/)"]],"line":9,"id":"08.1-company-identity-and-financial-evidence.t1"},{"type":"heading","level":3,"text":"Public/private rule","anchor":"public-private-rule","line":24},{"type":"paragraph","text":"Public issuer figures come from the appropriate filing with period, currency, units, amendment, consolidation and audit status. Private-company figures are facts only when supplied through reliable statements, ledger, tax/bank/contract records or authenticated systems. Traffic/headcount/job-post estimates are scenarios, never company revenue facts.","line":26},{"type":"heading","level":2,"text":"2. Canada official sources","anchor":"2-canada-official-sources","line":28},{"type":"table","headers":["Source","Metrics/interface","Proper use","Official source"],"align":["left","left","left","left"],"rows":[["Statistics Canada WDS/SDMX","CPI, labor, wages, vacancies, productivity, GDP/industry, business counts, input-output, trade, revenues/expenses; JSON/CSV/SDMX, no key","preserve table/vector, release/vintage, geography, NAICS, seasonal adjustment and units","[WDS](https://www.statcan.gc.ca/en/developers/wds/user-guide) · [SDMX](https://www.statcan.gc.ca/en/developers/sdmx/user-guide)"],["Bank of Canada Valet","rates, yields, FX, financial statistics/surveys; JSON/CSV/XML, no key","CAD discount/borrowing/FX/monetary scenarios","[API](https://www.bankofcanada.ca/valet-api-how-to/)"],["ISED Financial Performance Data","SME industry statements, balance sheets and ratios by NAICS/province/revenue band/incorporation","strong prior from sampled tax data; not target P&L; lag/suppression apply","[Site](https://ised-isde.canada.ca/site/financial-performance-data/en)"],["ISED Canadian Industry Statistics","establishments, employment, average revenue/expenses/profitability/trends","market structure/broad comparison","[Site](https://ised-isde.canada.ca/site/canadian-industry-statistics/en)"],["Key Small Business Statistics","SME counts/employment/financing/contribution","contextual benchmark; preserve year/definition","[Site](https://ised-isde.canada.ca/site/sme-research-statistics/en/key-small-business-statistics)"],["Merchandise trade explorer","imports/exports by HS/partner/province/period","product/industry exposure, not company shipments","[Explorer](https://www150.statcan.gc.ca/n1/pub/71-607-x/71-607-x2021004-eng.htm)"],["Canadian Importers Database","companies associated with products/origins/locations","presence signal only; incomplete shipment value","[Database](https://ised-isde.canada.ca/site/ised/en/research-and-business-intelligence/canadian-importers-database)"],["CanadaBuys","tenders, awards, standing offers, contracts","observed procurement benchmark after deliverable/term/option normalization","[Data](https://canadabuys.canada.ca/en/procurement-and-contracting-data)"]],"line":30,"id":"08.2-canada-official-sources.t1"},{"type":"heading","level":2,"text":"3. United States official sources","anchor":"3-united-states-official-sources","line":41},{"type":"table","headers":["Source","Metrics/access","Proper use","Official source"],"align":["left","left","left","left"],"rows":[["BLS Public Data API","CPI/PPI/employment/wages/hours/JOLTS/ECI/ECEC/productivity; JSON; free key increases quota/history","loaded-labor and price priors with seasonal/footnote controls","[FAQ](https://www.bls.gov/developers/api_faqs.htm)"],["BLS QCEW","establishments/employment/wages by geography/NAICS/size; CSV/bulk","labor and market denominator; note exclusions/lag","[Open data](https://www.bls.gov/cew/additional-resources/open-data/)"],["Census Data API","Economic Census/CBP/ZIP/Nonemployer/ACS/business surveys; JSON","market size, payroll and demographic context","[Guide](https://www.census.gov/data/developers/guidance/api-user-guide/query-components.html)"],["County Business Patterns","establishments/employment/payroll by geography/NAICS/size","local competition/labor concentration","[Program](https://www.census.gov/programs-surveys/cbp.html)"],["BEA API / beaapi","GDP/regional/industry/fixed assets/international/input-output","free key; official Python client CC0; national input-output needs target exposure bridge","[API](https://apps.bea.gov/api/signup/) · [Client](https://github.com/us-bea/beaapi)"],["FRED/ALFRED","rates, prices, labor, production, credit and publisher series","free key; terms/rate throttling; cite origin when possible; ALFRED for vintages/backtests","[API](https://fred.stlouisfed.org/docs/api/fred/)"],["Treasury Fiscal Data","rates, debt, receipts/spending/fiscal balances; no key JSON/CSV/XML","primary fiscal/risk-free-rate input","[API](https://fiscaldata.treasury.gov/api-documentation/)"],["EIA API v2","energy prices/production/consumption; free key","convert shock only with target energy/freight exposure","[Docs](https://www.eia.gov/opendata/documentation.php)"],["IRS SOI business tables","aggregate receipts/deductions/payroll/net income by industry/entity","lagged private-business prior, not target facts","[Statistics](https://www.irs.gov/statistics/soi-tax-stats-business-tax-statistics)"],["USAspending API","federal contracts/grants/loans/transactions; no auth","observed award benchmark with coverage/delay/threshold notes","[API](https://api.usaspending.gov/)"],["SAM.gov Opportunities","solicitations/awards/NAICS/dates/place; free account/key","demand/intent signal; ceiling/estimate ≠ realized revenue","[API](https://open.gsa.gov/api/get-opportunities-public-api/)"],["SAM Entity","UEI/CAGE/registration/public entity; free key with role-dependent quota","identity/eligibility only","[API](https://open.gsa.gov/api/entity-api/)"]],"line":43,"id":"08.3-united-states-official-sources.t1"},{"type":"heading","level":2,"text":"4. International, trade and supply chain","anchor":"4-international-trade-and-supply-chain","line":58},{"type":"table","headers":["Source","Coverage/access","Use and caution","Official source"],"align":["left","left","left","left"],"rows":[["World Bank Indicators","broad country indicators, no-key JSON/XML","cross-country context; dataset terms/attribution","[API](https://datahelpdesk.worldbank.org/knowledgebase/articles/889392-about-the-indicators-api-documentation)"],["OECD SDMX","prices/labor/productivity/trade/tax/industry/regulation/outlooks","preserve flags/breaks/projections and terms; rate limiting","[API](https://www.oecd.org/en/data/insights/data-explainers/2024/09/api.html)"],["IMF APIs/DataMapper","WEO/financial/fiscal/trade/BOP; SDMX/JSON","distinguish actuals, estimates and forecasts","[API](https://data.imf.org/en/Resource-Pages/IMF-API)"],["Eurostat APIs/bulk","EU HICP/labor/demography/production/trade; SDMX/TSV","preferred EU source; attribution/dataset checks","[Intro](https://ec.europa.eu/eurostat/web/user-guides/data-browser/api-data-access/api-introduction)"],["ILOSTAT","employment/unemployment/wages/hours/informality; bulk/R/SDMX","country definitions/modelled estimates vary","[Data](https://ilostat.ilo.org/data/)"],["UN Comtrade","bilateral HS trade/value/weight/quantity; account tier","mirror/revision/re-export/CIF-FOB differences; not company shipments","[Portal](https://comtradeplus.un.org/TradeFlow)"],["BIS Data Portal","rates/credit/property/EER/banking; SDMX/bulk","financial conditions/FX/credit context; terms apply","[Portal](https://data.bis.org/)"],["NY Fed GSCPI","standardized global supply-chain pressure index","shock indicator only; translate through target lead-time/freight/inventory exposure","[Index](https://www.newyorkfed.org/research/policy/gscpi)"],["US Census International Trade API","monthly HS/NAICS/end-use/port/geography","product/route exposure, not company shipments","[API](https://www.census.gov/data/developers/data-sets/international-trade.html)"],["BTS Freight Analysis Framework","origin/destination/commodity/mode/weight/value downloads","modeled regional flow baseline, not lane quote","[FAF](https://www.bts.gov/faf)"],["TED API/bulk","EU procurement notices/awards","observed procurement after scope normalization","[API](https://docs.ted.europa.eu/api/latest/index.html)"],["Open Contracting Data Registry","multi-country OCDS publishers, JSON/CSV/XLSX","discovery layer; verify originating authority/license/freshness","[Registry](https://data.open-contracting.org/)"],["Official tariff schedules","Canadian Customs, US HTS, EU TARIC","correct HS/origin/customs value/effective date/exclusions required","[Canada](https://www.cbsa-asfc.gc.ca/trade-commerce/tariff-tarif/menu-eng.html) · [US](https://hts.usitc.gov/) · [EU](https://taxation-customs.ec.europa.eu/customs-4/calculation-customs-duties/customs-tariff/eu-customs-tariff-taric_en)"]],"line":60,"id":"08.4-international-trade-and-supply-chain.t1"},{"type":"heading","level":2,"text":"5. Regulatory/compliance monitoring","anchor":"5-regulatory-compliance-monitoring","line":76},{"type":"table","headers":["Source/tool","Interface/use","Critical rule","Official source"],"align":["left","left","left","left"],"rows":[["Federal Register API","public JSON proposed/final rules/notices/agencies/dockets","verify dispositive official PDF through GovInfo","[API](https://www.federalregister.gov/developers/documentation/api/v1)"],["eCFR API","JSON/XML current/point-in-time CFR","track title/part/section/amendment/effective date and legal-status notice","[API](https://www.ecfr.gov/developers/documentation/api/v1)"],["Regulations.gov API","key, dockets/documents/comments","do not automate comment submission in passive system","[API](https://open.gsa.gov/api/regulationsgov/)"],["Congress.gov API","key, bills/laws/actions/committees","bill ≠ obligation; retain stage","[Repo/docs](https://github.com/LibraryOfCongress/api.congress.gov/)"],["Canada Gazette RSS","Parts I/II/III","store proposal/final/statute, deadline, registration/effective dates separately","[RSS](https://gazette.gc.ca/rss/sc-rb-eng.html)"],["Justice Laws XML","Canadian federal acts/regulations/diffs","reproduce accurately; consolidated text may lag some changes","[Repo](https://github.com/justicecanada/laws-lois-xml)"],["LEGISinfo","Canadian bill stages/votes/enactment, JSON/XML","proposal vs enacted state","[Site](https://www.parl.ca/legisinfo/)"],["EUR-Lex/Cellar","EU legislation/preparatory/case law via XML/SOAP/REST/SPARQL/RSS","consolidated/original/transposition/territory/corrigenda","[Reuse](https://eur-lex.europa.eu/content/help/data-reuse/reuse-contents-eurlex-details.html) · [Cellar](https://op.europa.eu/en/web/cellar/cellar-data)"],["UK legislation API","OGL XML/RDF/Atom","known unapplied/incomplete update limitations; verify current status","[Developer](https://www.legislation.gov.uk/developer)"],["NIST OSCAL/oscal-cli","Apache-2.0 machine-readable controls/SSP/assessment validation","encodes evidence, does not decide legal applicability","[OSCAL](https://pages.nist.gov/OSCAL/) · [CLI](https://github.com/usnistgov/oscal-cli)"],["ComplianceAsCode","BSD-3-Clause SCAP/Ansible/Bash policy tests","technical tests only; false positives/vendor content rights","[Repo](https://github.com/ComplianceAsCode/content)"],["Open Policy Agent","Apache-2.0 Rego engine","policy execution, not legal interpretation","[Repo](https://github.com/open-policy-agent/opa)"],["pyfair","MIT Monte Carlo FAIR tool","input quality and FAIR trademark/terminology obligations","[Repo](https://github.com/Hive-Systems/pyfair)"]],"line":78,"id":"08.5-regulatory-compliance-monitoring.t1"},{"type":"paragraph","text":"Do not redistribute SOC 2, ISO, CIS, PCI or other copyrighted control catalogs merely because a copy is accessible. Use client-licensed copies or official free crosswalks.","line":94},{"type":"heading","level":2,"text":"6. Public price and competitor normalization","anchor":"6-public-price-and-competitor-normalization","line":96},{"type":"table","headers":["Component","License/use","Role","Official source"],"align":["left","left","left","left"],"rows":[["public pricing/checkout/terms","public observation under source terms","observed list/checkout offer; not realized net price","target source"],["Schema.org Offer","vocabulary","price/currency/availability/unit metadata","[Offer](https://schema.org/Offer)"],["Scrapy","BSD-3-Clause","permitted scheduled retrieval","[Repo](https://github.com/scrapy/scrapy)"],["Playwright","Apache-2.0","render permitted JS pricing pages","[Repo](https://github.com/microsoft/playwright)"],["extruct","BSD family","JSON-LD/microdata/RDFa/OpenGraph extraction","[Repo](https://github.com/scrapinghub/extruct)"],["price-parser","BSD family","parse locale/currency strings","[Repo](https://github.com/scrapinghub/price-parser)"],["Common Crawl/Wayback","public historical evidence","price-change history; incomplete/stale and source rights","[Common Crawl](https://commoncrawl.org/get-started) · [CDX](https://github.com/internetarchive/wayback/tree/master/wayback-cdx-server)"]],"line":98,"id":"08.6-public-price-and-competitor-normalization.t1"},{"type":"paragraph","text":"Comparable fingerprint: region, currency, tax, billing/term, quantity band, included units/features, overage, implementation, mandatory add-ons, support/SLA, cancellation and promotion. Use matched pairs or median/IQR; no unqualified competitor mean.","line":108},{"type":"code","lang":"text","content":"Monthly equivalent =\n(recurring contract + mandatory one-time − unconditional discounts)\n/ contract months + expected monthly overage","line":110,"id":"08.6-public-price-and-competitor-normalization.c1"},{"type":"heading","level":2,"text":"7. Open-source modeling library","anchor":"7-open-source-modeling-library","line":116},{"type":"table","headers":["Layer","Tools","License","Role"],"align":["left","left","left","left"],"rows":[["tabular/analytics","pandas, Polars, DuckDB, Apache Arrow","BSD-3, MIT, MIT, Apache-2.0","joins, dimensional models, local SQL/Parquet"],["schema","Pandera","MIT","units/currencies/evidence/null rules"],["official statistics","sdmx1, pandas-datareader","Apache-2.0, BSD-3","SDMX and convenient provider clients"],["filings","Arelle, EdgarTools, sec-edgar-downloader, beaapi","Apache-2.0, MIT, MIT, CC0","primary acquisition/validation"],["econometrics","statsmodels, linearmodels","BSD-3, NCSA","regression/time series/panel/IV"],["survival/churn","lifelines","MIT","Kaplan-Meier/Cox/censoring"],["Bayesian uncertainty","PyMC","Apache-2.0","hierarchical priors/posterior simulation"],["marketing/CLV","PyMC-Marketing","Apache-2.0","MMM/CLV/choice/diffusion/incrementality"],["MMM","Google Meridian, Meta Robyn","Apache-2.0, MIT","Bayesian geo and ridge/evolutionary MMM"],["causal","DoWhy, EconML, DoubleML, CausalPy","MIT, MIT, BSD-3, Apache-2.0","graphs/refutation, HTE, debiased ML, DiD/synthetic/RD/ITS"],["sensitivity","SALib","MIT","Sobol/Morris/FAST"],["operations","SimPy","MIT","queue/service/onboarding/logistics simulation"],["finance","numpy-financial","BSD-3","NPV/IRR/cash flows"],["cyber risk","pyfair","MIT","FAIR frequency/loss distributions"],["aggregation","DBnomics client","AGPL-3.0 client","many official providers; retain origin provenance"]],"line":118,"id":"08.7-open-source-modeling-library.t1"},{"type":"paragraph","text":"A conservative proprietary stack starts with DuckDB/Polars/Arrow, Pandera, sdmx1, filing tools, statsmodels, linearmodels, lifelines, SALib and SimPy. Add Bayesian/causal tooling only when data supports it; review AGPL separately.","line":136},{"type":"heading","level":2,"text":"8. Evidence and uncertainty","anchor":"8-evidence-and-uncertainty","line":138},{"type":"paragraph","text":"Use the canonical E0–E5 evidence levels from `03-evidence-provenance-standard.md`, plus the financial input tags `R` reported, `M` measured, `B` benchmark, `A` assumption, and `C` calculated. They answer different questions: evidence level describes support strength; the financial tag describes the number's origin.","line":140},{"type":"table","headers":["Evidence condition","Financial treatment"],"align":["left","left"],"rows":[["E5 = E4 plus audited/reconciled target data or a valid controlled test","May support a target-specific estimate; still expose formula and time scope"],["E4 corroborated official or reproducible evidence","Suitable for material inputs with scope and caveats"],["E3 current official source","Use as reported/observed, not as proof of private operating performance"],["E2 single-source, user-generated, or secondary support","Use only in bounded scenarios or as a research lead for high-impact models"],["E0–E1 unsupported or unverified lead","Never use as a factual model input; an explicit analyst assumption may appear only in an illustrative scenario"]],"line":142,"id":"08.8-evidence-and-uncertainty.t1"},{"type":"paragraph","text":"If any material input is a benchmark or assumption, show low/base/high or P10/P50/P90. If two or more critical inputs are assumptions, do not label the output an estimated annual loss. Round modeled outputs to a precision justified by the inputs—normally two significant figures—and show probability NPV > 0 when simulated.","line":150},{"type":"paragraph","text":"Use empirical distributions first; otherwise Beta for rates, lognormal/gamma for positive skew, negative binomial for overdispersed counts, triangular/PERT for elicited ranges, bootstrap for cohorts, survival models for lifetimes. Encode material correlations. Run enough simulation for stable percentiles and expose dominant assumptions.","line":152},{"type":"heading","level":2,"text":"9. Red-line tests","anchor":"9-red-line-tests","line":154},{"type":"paragraph","text":"Reject/downgrade any model that converts sentiment/SOV/review count directly to dollars; uses maximum fines as expected loss; treats all saved time as cash; treats market-cap movement as operating loss; double-counts revenue and contribution; treats list price as realized price; claims private revenue from traffic/headcount; mixes currency/real/nominal/period/classifications; hides assumptions; or omits source, retrieval/vintage, formula and range.","line":156},{"type":"heading","level":2,"text":"10. LAKA ladder","anchor":"10-laka-ladder","line":158},{"type":"table","headers":["State","Economic intelligence capability"],"align":["left","left"],"rows":[["Baseline","sourced company/public macro facts and explicit unknowns"],["Minor","normalized official-source connectors and formula registry"],["Major","target-authorized cohort/unit models, scenario ranges and sensitivity"],["Structural","causal/experiment design, lineage, overlap reconciliation and rolling forecast governance"],["Paradigm","optimize the unit of value and option portfolio rather than headline revenue; uncertainty becomes a managed asset"]],"line":160,"id":"08.10-laka-ladder.t1"}]}